Concentrated detergent capable of improving surface skinning phenomenon and preparation method thereof

Abstract

The invention relates to the technical field of detergents, in particular to a concentrated detergent capable of improving the surface skinning phenomenon and a preparation method of the concentrated detergent. The invention discloses a concentrated dishwashing liquid capable of improving a surface skinning phenomenon. The concentrated dishwashing liquid comprises the following components in percentage by weight: 1-10% of an active composition, 1-5% of a solubilizer, 20-30% of a surfactant, 1-5% of other auxiliaries and the balance of water, the active composition is composed of polyoxyalkylene alkylamine and PEG-400, the structure of the polyoxyalkylene alkylamine is # imgabs0 #, R is an alkyl group, and AO is an alkenyl oxide. The preparation method of the concentrated detergent comprises the following steps: dissolving the active composition, the solubilizer and the surfactant in the formula amount of water, heating to 40-55 DEG C, cooling, adding other aids, uniformly stirring and mixing, and performing post-treatment to obtain the concentrated detergent. The PEG-400 and polyoxyalkylene alkylamine are introduced, so that the crusting phenomenon is effectively reduced while the excellent washing performance of the detergent is not influenced.

Description

Technical Field The present application relates to the technical field of detergents, and in particular to a concentrated dishwashing liquid capable of improving the surface crusting phenomenon and a preparation method thereof. Background Art

[0002] Concentrated dishwashing liquid is a concentrated detergent that contains a high content of surfactants, so it has strong cleaning ability. Compared with ordinary dishwashing liquid, concentrated dishwashing liquid increases the content of effective ingredients per unit volume or unit mass of detergent.

[0003] In the related art, the concentration of detergent is generally effectively improved by adding solvents or solubilizers. However, since the solvent is volatile, a layer of "skinning" material is easily formed at the bottle mouth or the pump outlet after opening and use, which seriously affects the consumer's experience.

[0004] Therefore, the development of a concentrated dishwashing liquid that can effectively improve the skinning phenomenon without affecting the product and other performances has become an urgent need in the washing industry. Summary of the invention

[0005] In order to solve the above-mentioned problems, the present application hereby provides a concentrated dishwashing liquid that can improve the surface crusting phenomenon and a preparation method thereof, aiming to effectively improve the surface crusting phenomenon generated during the use of the concentrated dishwashing liquid without changing the basic properties of the dishwashing liquid, thereby improving the washing efficiency and user experience.

[0006] In the first aspect, the present application provides a concentrated dishwashing liquid capable of improving the surface crusting phenomenon, which adopts the following technical solution: A concentrated detergent capable of improving the surface skinning phenomenon, wherein the components and the amounts thereof are as follows: The balance is water; The active composition is composed of a nonionic surfactant and a moisturizing solubilizer, wherein the nonionic surfactant is a polyoxyalkylene alkylamine, and the moisturizing solubilizer is PEG-400, and the structure of the polyoxyalkylene alkylamine is: Wherein, R is an alkyl group and AO is an alkyl oxide.

[0007] By adopting the above technical solution, the special combination of polyoxyalkylene alkylamine and PEG-400 enables the concentrated dishwashing liquid to not only maintain its excellent detergency, but also significantly improve the surface crusting phenomenon, thereby improving washing efficiency and user experience.

[0008] As a nonionic surfactant, polyoxyalkylene alkylamine has the advantages of high cleaning power for grease and dirt, hard water resistance, and good rinsing properties. It also has excellent fluidity, which can effectively achieve high concentration of detergents and reduce the use of solvents. PEG-400, as an excellent humectant and solubilizer, can not only help polyoxyalkylene alkylamines to dissolve better in the system, but more importantly, its special combination with polyoxyalkylene alkylamines performs well in effectively inhibiting surface skinning. Its moisturizing property can reduce the volatilization of water to a certain extent, thereby reducing the risk of "skinning" at the bottle mouth or the pressure pump outlet.

[0009] Preferably, in the active composition, the ratio of PEG-400 to polyoxyalkylene alkylamine is (2-4):1.

[0010] By adopting the above technical solution, the optimization of this ratio makes the synergy between PEG-400 and polyoxyalkylene alkylamine reach the best state, and also takes into account the overall performance and cost-effectiveness of the dishwashing liquid. Through precise proportioning, the concentrated dishwashing liquid maintains high efficiency in decontamination while also achieving good cost control and user experience.

[0011] Preferably, the amount of the active composition used accounts for 20-30% of the total amount of surfactant used.

[0012] Preferably, the amount of the active composition used accounts for 20-25% of the total amount of surfactant used.

[0013] By adopting the above technical solution, the amount of active composition added can be accurately controlled, the cost-effectiveness can be maximized, and the cost-effectiveness of the product can be improved.

[0014] Preferably, the solubilizing agent is sodium xylene sulfonate and / or sodium cumene sulfonate.

[0015] Preferably, the surfactant is one or more of sodium polyoxyethylene fatty alcohol ether sulfate, lauryl dimethyl amine oxide, cocamidopropyl amine oxide, and cocamidopropyl betaine.

[0016] Preferably, the other auxiliary agents include flavors, preservatives and chelating agents.

[0017] In the second aspect, the present application provides a method for preparing a concentrated dishwashing liquid capable of improving the surface crusting phenomenon, which adopts the following technical scheme: A method for preparing a concentrated detergent capable of improving the surface skinning phenomenon comprises the following preparation steps: S1. Dissolve the active composition, solubilizer and surfactant in the formulated amount of water and heat to 40-55°C simultaneously; S2. After the dissolution is completed, cool to room temperature, then add other additives, stir to make it fully mixed, and then filter and fill to obtain the concentrated detergent product.

[0018] By adopting the above technical solution, not only the effective dissolution and uniform mixing of the active ingredients of detergents are achieved, but also the subsequent addition of additives and filtering and filling steps ensure the stable performance, excellent quality and ease of use of the finished dishwashing liquid. This preparation method provides a reliable technical guarantee for the production of concentrated dishwashing liquid with high efficiency and good user experience.

[0019] In summary, this application has the following beneficial effects: 1. The present application can significantly reduce the surface tension of the detergent under static or low temperature conditions by introducing PEG-400 and polyoxyalkylene alkylamine, effectively preventing the skinning phenomenon, while not affecting the basic cleaning function of the detergent; 2. The present application can minimize the cost while maximizing the reduction of the skinning phenomenon by precisely controlling the amount of the active composition and the amount of PEG-400 and polyoxyalkylene alkylamine in the active composition, thereby improving the market competitiveness of the product. DETAILED DESCRIPTION

[0020] The present application is further described in detail below in conjunction with specific embodiments.

[0021] Performance testing Take the detergent prepared in the above embodiments, weigh 100g of the sample, put it into a 200ml beaker, and place it in a constant temperature and humidity chamber with the chamber conditions set at 30°C and 75% humidity. Observe the skinning phenomenon of the sample after 2h and 4h. The skinning phenomenon is divided into 4 levels, where 0 means no skinning, 1 means slight skinning, 2 means obvious skinning, and 3 means severe skinning.

[0022] Example 1 A concentrated dishwashing liquid capable of improving the surface skinning phenomenon, wherein the components and their amounts (g) are shown in the following table.

[0023] The preparation method of the above-mentioned concentrated detergent capable of improving the surface skinning phenomenon comprises the following steps: S1. Dissolve PEG-400, polyoxyalkylene alkylamine, sodium xylene sulfonate, sodium polyoxyethylene fatty alcohol ether sulfate and lauryl dimethylamine oxide in water, stir at a rate of 200 rpm / min for 40 min, and heat to 40-55° C. for dissolution; S2. After dissolution is completed, cool to room temperature, then add preservatives, chelating agents and flavors, stir and mix at a speed of 200 rpm / min for 20 minutes to make them fully dispersed, and then filter and fill to obtain the concentrated detergent product.

[0024] In the examples of the present application, the polyoxyalkylene alkylamine is from Sanyo Chemical Industries, Ltd. of Japan. Sodium fatty alcohol polyoxyethylene ether sulfate comes from Zanyu Technology Co., Ltd., and lauryl dimethyl amine oxide comes from Guangzhou Xingye Technology Co., Ltd.

[0025] Example 2-3 A concentrated dishwashing liquid capable of improving the surface skinning phenomenon, which differs from Example 1 in that the components and their amounts (g) are shown in the following table.

[0026] The concentrated dishwashing liquids prepared in the above Examples 1-3 were tested for skinning performance by referring to the aforementioned test method. The test results are shown in the table below.

[0027] By analyzing the data in the above table, it can be seen that the concentrated dishwashing liquid prepared by Examples 1-3 has a skinning grade of 0 at 2h and 4h, that is, no skinning phenomenon occurs after being left open for 2h and 4h, indicating good fluidity. It can be seen that when the amount of the active composition accounts for 20-25% of the total amount of the active composition and the surfactant, the prepared concentrated dishwashing liquid has excellent anti-skinning performance; in addition, in the active composition, the amount of PEG-400 and polyoxyalkylene alkylamine is preferably in a ratio of 2:1.

[0028] Embodiment 4-5 A concentrated dishwashing liquid capable of improving the surface skinning phenomenon, which differs from Example 1 in that the type of surfactant and its dosage (g) are shown in the following table.

[0029] Embodiment 6-7 A concentrated dishwashing liquid capable of improving the surface skinning phenomenon, which differs from Example 1 in that the type of solubilizer and its usage (g) are shown in the following table.

[0030] The concentrated dishwashing liquids prepared in Examples 4-7 were tested for skinning performance by referring to the aforementioned test method. The test results are shown in the table below.

[0031] Through the analysis of the data in the above table, it can be known that the concentrated dishwashing liquid prepared by the above Examples 4-7 has a skinning level of 0 at 2h and 4h, that is, no skinning phenomenon occurs after being placed in the open for 2h and 4h, indicating that it has good stability and is not easy to form a solid cortex or lumps. Therefore, the solubilizer and surfactant used in the above Examples 4-7 can be used as feasible alternatives.

[0032] Comparative Examples 1-4 A concentrated dishwashing liquid capable of improving the surface skinning phenomenon, which differs from Example 1 in that the components in the active composition and their amounts (g) are shown in the following table.

[0033] The concentrated detergents prepared in the above comparative examples 1-4 were tested for skinning performance by referring to the aforementioned test method. The test results are shown in the table below.

[0034] By analyzing the data in the above table, it can be seen that the concentrated dishwashing liquids prepared by comparative examples 1-4 of the present application have a skinning grade within the range of grade 1-2 at 2 hours, and a skinning grade within the range of grade 2-3 at 4 hours, that is, after being placed in the open for 2 hours, different degrees of skinning phenomenon occurred, and after being placed for 4 hours, more serious skinning phenomenon occurred, among which the dishwashing liquid prepared by comparative example 1 had the most serious skinning phenomenon at 4 hours; Compared with Example 1, in Comparative Example 1 of the present application, the active composition is composed of AEO-7 and PEG-400, that is, an equal amount of AEO-7 is used to replace polyoxyalkylene alkylamine, but this replacement fails to improve the anti-skinning performance of the detergent, but aggravates the skinning phenomenon; in Comparative Example 2 of the present application, the active composition is composed only of polyoxyalkylene alkylamine, but the results show that this single component cannot effectively prevent the skinning of the detergent; in Comparative Example 3 of the present application, the active composition is composed only of PEG-400, and similarly, the ideal anti-skinning effect is not obtained. In Comparative Example 4 of the present application, the active composition is composed of polyoxyalkylene alkylamine and propylene glycol, that is, an equal amount of propylene glycol is used to replace PEG-400, but this replacement also fails to significantly improve the anti-skinning performance of the detergent; It can be seen that only when the active composition is composed of polyoxyalkylene alkylamine and PEG-400, the prepared concentrated detergent has excellent anti-skinning phenomenon.

[0035] The above are all modifications without creative contribution or solutions that obviously constitute technical inspiration that can be made to the present embodiment as needed by technical personnel in this field after reading this specification, but they should be protected by patent law as long as they are within the scope of the claims of this application.

Claims

1. A concentrated detergent capable of improving the surface crusting phenomenon, characterized in that: The components and their dosage are as follows: The active composition is composed of a nonionic surfactant and a moisturizing solubilizer, wherein the nonionic surfactant is a polyoxyalkylene alkylamine, and the moisturizing solubilizer is PEG-400, and the structure of the polyoxyalkylene alkylamine is: Wherein, R is an alkyl group and AO is an alkyl oxide.

2. The concentrated detergent capable of improving the surface skinning phenomenon according to claim 1, characterized in that: In the active composition, the usage ratio of PEG-400 to polyoxyalkylene alkylamine is (2-4):

1.

3. The concentrated detergent capable of improving the surface skinning phenomenon according to claim 1, characterized in that: The amount of the active composition used accounts for 20-30% of the total amount of surfactants used.

4. The concentrated detergent capable of improving the surface skinning phenomenon according to claim 1, characterized in that: The amount of the active composition used accounts for 20-25% of the total amount of surfactants used.

5. The concentrated detergent capable of improving the surface skinning phenomenon according to claim 1, characterized in that: The solubilizing agent is sodium xylene sulfonate and / or sodium cumene sulfonate.

6. The concentrated detergent capable of improving the surface skinning phenomenon according to claim 1, characterized in that: The surfactant is one or more of sodium fatty alcohol polyoxyethylene ether sulfate, lauryl dimethyl amine oxide, cocamidopropyl amine oxide, and cocamidopropyl betaine.

7. The concentrated detergent capable of improving the surface skinning phenomenon according to claim 1, characterized in that: The other auxiliary agents include flavors, preservatives and chelating agents.

8. The method for preparing the concentrated detergent capable of improving the surface skinning phenomenon as claimed in any one of claims 1 to 7, characterized in that: The method comprises the following preparation steps: S1. Dissolve the active composition, solubilizer and surfactant in the formulated amount of water and heat to 40-55°C simultaneously; S2. After the dissolution is completed, cool to room temperature, then add other additives, stir to make it fully mixed, and then filter and fill to obtain the concentrated detergent product.

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